WiFi Not Working on Huawei P9: Fixes That Work

If your Huawei P9’s Wi-Fi has stopped working, the problem is usually a software glitch, a forgotten network, or a router issue, and most cases can be fixed in under ten minutes without any technical skill. This guide walks you through the most effective fixes in order, from the simplest restart to a full network reset, and explains what to do if the problem is hardware-related.

Why Wi-Fi Fails on the Huawei P9

The Huawei P9, released in 2016, runs Android 6.0 (Marshmallow) and can be updated to Android 7.0 (Nougat). Its Wi-Fi module is generally reliable, but like any smartphone, it can fail due to:

• Software bugs – after an update, an app crash, or a corrupted cache.
• Network configuration errors – a saved network with a wrong password or an IP conflict.
• Router or modem issues – the router may be overloaded, have outdated firmware, or be too far away.
• Battery saver or airplane mode – these can disable Wi-Fi without you noticing.
• Hardware failure – a damaged Wi-Fi antenna or chip, often from a drop or water exposure.

Quick Fixes to Try First

Start with these simple steps, as they resolve most temporary glitches:

1. Toggle Wi-Fi off and on – swipe down from the top of the screen, tap the Wi-Fi icon to turn it off, wait 10 seconds, then turn it back on.
2. Restart the phone – press and hold the power button, then tap “Restart.” This clears temporary memory and often re-establishes the Wi-Fi connection.
3. Restart the router – unplug the router’s power, wait 30 seconds, and plug it back in. Wait for the router to fully boot (lights stabilize) before reconnecting.
4. Check airplane mode – ensure it is off. If it was on, turning it off should restore Wi-Fi.
5. Check battery saver – go to Settings > Battery and turn off any aggressive battery optimization that might be disabling Wi-Fi in the background.

Forget and Reconnect to the Network

If the quick fixes fail, the saved network profile may be corrupted. Forgetting the network and reconnecting forces the phone to renegotiate the connection from scratch.

1. Go to Settings > Wi-Fi.
2. Tap and hold the network name that is not working.
3. Select “Forget network”.
4. Tap the network again, enter the password, and connect.

This resolves issues caused by an outdated password, a changed router security type, or a stale IP address.

Reset Network Settings

If forgetting the network doesn’t help, the next step is to reset all network settings. This clears saved Wi-Fi networks, Bluetooth pairings, and mobile data settings, but does not delete your personal files.

1. Open Settings.
2. Scroll to Advanced settings (or System on Android 7).
3. Tap “Backup & reset”.
4. Select “Reset network settings”.
5. Confirm and wait for the phone to restart.

After the reset, you’ll need to re-enter your Wi-Fi password. This is a safe, non-destructive fix that often solves persistent connection issues.

Check Router and Modem Settings

Sometimes the problem lies with the router, not the phone. Here are common router-side issues and how to address them:

• Too many connected devices – some routers have a limit. Disconnect unused devices and try again.
• Channel congestion – if many neighboring networks use the same channel, interference occurs. Log into your router’s admin page and change the Wi-Fi channel to 1, 6, or 11 (for 2.4 GHz).
• MAC address filtering – if enabled, your phone’s MAC address may be blocked. Temporarily disable filtering to test.
• Outdated firmware – check the router manufacturer’s website for updates and apply them.
• DHCP issues – if the phone connects but has no internet, try setting a static IP address on the phone (in Wi-Fi settings, modify network, select “Static” under IP settings).

When It’s a Hardware Problem

If none of the software fixes work, the Wi-Fi antenna or chip inside the P9 may be damaged. Common signs include:

• Wi-Fi is grayed out in settings and cannot be toggled.
• The phone detects no networks at all, even near a strong router.
• Wi-Fi works only when you press firmly on the back of the phone (a loose antenna connection).

In such cases, a repair shop can replace the Wi-Fi antenna or IC chip. The cost varies, but it’s often cheaper than a new phone. Before going that route, try a factory reset (back up your data first) to rule out a deep software corruption.

Frequently Asked Questions

Why does my Huawei P9 keep disconnecting from Wi-Fi?

This is often caused by a weak signal, a router setting called “Wi-Fi sleep” that disconnects the phone when the screen is off, or a conflicting IP address. Try turning off “Wi-Fi+” in settings (if available), forget the network and reconnect, and check if the router has a device limit.

Will a factory reset fix my Wi-Fi?

It can, if the issue is a corrupted system file or a bad app. A factory reset restores the phone to its original state, so back up your contacts and photos first. If Wi-Fi still fails after a factory reset, the problem is almost certainly hardware.

How do I update the Wi-Fi driver on my Huawei P9?

You can’t update a Wi-Fi driver separately on Android. Driver updates come with system updates. Go to Settings > About phone > System updates and check for any available update. Installing the latest update may fix Wi-Fi bugs.

Why does Wi-Fi work on other devices but not my P9?

This indicates the problem is specific to the phone, not the router. Try the network reset steps above. Also, check if your P9’s MAC address is blocked on the router, or if the router is set to “5 GHz only” – the P9 supports 5 GHz, but if it’s set to a channel that the phone doesn’t support, it won’t connect.

Can a VPN app cause Wi-Fi issues?

Yes. A VPN app that crashes or has an outdated configuration can block all network traffic. Uninstall any VPN app and test Wi-Fi. Also, check if a “Private DNS” setting is interfering – go to Settings > Wi-Fi > Modify network > Advanced and set IP settings to DHCP.

Preventing Future Wi-Fi Problems

To minimize the chance of Wi-Fi failing again:

• Keep the phone’s software updated.
• Restart the phone at least once a week to clear memory.
• Avoid installing apps from unknown sources that might tamper with system settings.
• If you use a Wi-Fi analyzer app, don’t leave it running constantly – it can drain battery and cause conflicts.

With the steps above, you should be able to restore Wi-Fi on your Huawei P9 in most cases. If nothing works, a professional repair is the final option, but it’s rare that you’ll need it.

Related

• IPv6 No Network Access in Windows 11: Fix
• Windows 10 Privacy Settings App Not Opening? Fix It
• How to See My Gmail Password (Saved Passwords Guide)